Solar for Small Businesses and the Savings They Report
Short answer: Small businesses that go solar commonly report lower electricity bills, but the size of the savings varies enormously from one business to the next. It depends on your electricity rates, how much power you use during daylight hours, how the system is paid for, and what incentives and export rules apply where you operate. A claim like "we cut our bill in half" can be true and still tell you little about what you would save.
So this article does not hand you a magic percentage. It shows you how to read the savings other businesses report, which factors drive the gap between a great result and a disappointing one, and how to build a realistic estimate for your own premises.
Key takeaways
- Reported savings are usually bill reductions. They are not always net of loan payments, lease fees, maintenance, or insurance.
- Businesses that use most of their power during the day tend to benefit more than those that mostly use it at night.
- How you pay (cash, loan, lease, or power purchase agreement) changes what "savings" even means.
- Incentives, tax treatment, and export rules change often and differ by country and region. Verify them with official sources before you decide.
- This article is general information, not financial, tax, or legal advice for your business.
What you'll find here
What small businesses typically report
When small business owners describe their results, the same themes come up again and again:
- A lower or steadier electricity bill, especially during sunny months.
- Protection from future rate rises, because part of their power now comes from their own system rather than the grid.
- A longer payback than the brochure suggested, when financing costs, maintenance, or roof repairs were not counted at the start.
- Non-bill benefits, such as a sustainability story for customers, though these are hard to price and should not be the basis of your calculation.
Notice what is missing: a universal number. Anyone quoting one figure for "the average small business" is simplifying heavily. Treat reported percentages as stories about specific situations, not forecasts.
Rule of thumb: A savings figure without the business's usage pattern, tariff, and payment model is just a number, not evidence.
The six factors behind big and small savings
1. When you use your power
Solar generates in daylight. A dental clinic, office, workshop, or cold-storage unit that runs mostly between morning and late afternoon can use much of its own generation directly. A restaurant or venue that peaks in the evening may produce a lot at times it needs little, and then depends on how your utility treats the surplus.
2. Your tariff structure
Business bills are rarely a single price per unit. Many include time-of-use rates, fixed monthly charges, and in some cases charges based on your highest short-term demand. Solar generally reduces the energy portion of the bill more reliably than the fixed or demand portions. Two businesses using identical energy can see very different savings for this reason alone.
3. What happens to the surplus
Some utilities credit exported power at full retail value, some at a lower rate, and some do not credit it at all. This rule can swing the economics more than the panels themselves, and it can change over time. Ask your utility what applies now and what has been proposed.
4. Your local electricity price
The higher your cost per unit, the more each unit of solar output is worth. If grid power is cheap where you are, payback stretches out. If it is expensive or unreliable, solar can look stronger, especially if you would otherwise run a generator.
5. Your roof, space, and shading
Orientation, shade from neighboring buildings, roof age, and structural condition all affect output and cost. A roof that needs replacing soon can add a hidden expense, because panels may have to be removed and reinstalled.
6. How the system is paid for
Cash, loans, leases, and power purchase agreements split costs and benefits in different ways. The next sections show why this matters when you read someone else's results.
How to read a savings claim
Before you take any business's reported result as a benchmark, run it through these questions.
- Gross or net? Did "we saved X" mean the bill dropped by X, or that cash in the bank rose by X after loan or lease payments?
- Over what period? A good summer month is not a year. Seasonal swings can be large.
- Compared with what? Compared with the old bill at old rates, or with what the bill would be today at current rates?
- What changed besides solar? New equipment, longer opening hours, or efficiency upgrades also move your bill.
- Who is saying it? An installer's case study is a marketing document. An independent owner's account, or an official report, deserves different weight. Neither replaces your own numbers.
Quick check
A café says solar "cut its bill by 40%." Which two facts would you most want before copying that expectation? (Hint: look at the list above. The most useful answers are usually when the café uses its power, and whether the figure is net of financing.)
Buy, loan, lease, or PPA: how the model changes the math
The same system can look like a bargain or a burden depending on how it is financed. This table is a general guide. Terms differ by provider and country, so read the actual contract.
| Model |
How it generally works |
Where "savings" can mislead |
| Cash purchase |
You pay upfront and own the system. |
Bill savings look large, but the money tied up could have been used elsewhere in the business. |
| Loan |
You own the system and repay a lender over time. |
A lower electricity bill can be offset by loan payments. Count both. |
| Lease |
You pay a fixed fee to use equipment someone else owns. |
Check escalator clauses, end-of-term options, and what happens if you move or sell. |
| Power purchase agreement (PPA) |
A provider owns the system and sells you its output at an agreed price. |
Savings depend on the contract price versus future grid prices, and prices can step up over time. |
If you rent your premises, there is an extra question. Landlords and tenants often have split incentives: the tenant pays the bill, but the landlord owns the roof. Get written permission and agree who benefits before spending anything.
Try it: a rough savings and payback estimator
This tool turns four numbers into a first-pass estimate. The starting values are editable examples, not real data, so replace them with figures from your own bill and quotes. Nothing you type is saved or sent anywhere.
Try changing one input at a time. You will usually find that the offset percentage and the net cost move the answer the most, which is why those two numbers deserve the hardest questions when you collect quotes.
When solar does not pay off
Honest comparisons include the cases where it disappoints. Common reasons:
- Low daytime use. Most of your consumption happens when panels are idle, and exports are poorly credited.
- Short time horizon. You may leave the premises, or the lease may end, before the system pays for itself.
- Roof problems. An aging or unsuitable roof adds cost or limits the system.
- Heavily shaded sites. Output drops, and so does the value.
- Contract surprises. Escalating lease or PPA prices, early-exit fees, or transfer restrictions.
- Cheap grid power. If your tariff is low, each unit generated saves little.
- Unexamined quotes. Oversized systems sold on optimistic assumptions can leave you paying for capacity you cannot use.
Efficiency upgrades such as better lighting, refrigeration, or equipment scheduling can sometimes cut a bill more cheaply than generation can, so they are worth pricing alongside solar.
Worth remembering: The cheapest kilowatt-hour is often the one you never use. Check what you can trim before you size what you need to generate.
The three-bill test
Here is a quick way to build your own estimate instead of borrowing someone else's. Gather three things:
- Twelve months of bills. They show your seasonal pattern and your real average, not a single lucky or unlucky month.
- Your tariff details. Identify the time-of-use periods, fixed charges, and any demand charges, so you know which parts of the bill solar can actually reduce.
- Three itemized quotes. Compare system size, expected output assumptions, equipment, warranties, and total price on the same basis. If a quote cannot be compared line by line, ask for it to be reissued.
Then put the figures through the estimator above and ask what changes if prices rise, fall, or stay flat. If the project only works under the rosiest assumption, treat that as information.
Questions to ask before signing
- What usage data and tariff did you use to calculate my expected savings?
- What is the production guarantee, if any, and what happens if output falls short?
- Who handles permits, utility approval, and inspection?
- What do the equipment and workmanship warranties cover, and for how long?
- What are the exit terms if I move, sell, or close?
Common questions
How much can a small business save with solar?
There is no reliable single figure. Results range widely depending on usage timing, tariff, export rules, system size, and financing. Build an estimate from your own bills and itemized quotes instead of relying on an average.
Are incentives available for business solar?
Many countries and regions offer some mix of tax treatment, grants, or favorable tariffs for businesses, but programs change often and eligibility rules differ. Check your government energy agency, tax authority, and utility directly, and ask a qualified tax adviser how they apply to your business.
Is leasing or a PPA better than buying?
It depends on your priorities. Leases and PPAs reduce upfront cost but can limit long-term savings and flexibility. Buying costs more at the start and leaves you responsible for maintenance. Compare the total cost over the full contract period, including escalators and exit terms.
Do I need batteries?
Not necessarily. Batteries add cost and can help if you pay high peak prices, face outages, or receive little credit for exports. For many businesses, a system without storage is a simpler first step. Ask installers to show the numbers both ways.
What if I rent my premises?
Get your landlord's written agreement first, and settle who owns the equipment, who pays for roof repairs, and what happens at the end of your tenancy.
The bottom line
Small businesses do report real savings from solar, but those results reflect specific usage patterns, tariffs, and deals. The smartest way to use their stories is as a list of questions to ask, not a number to expect. Your next step: collect twelve months of bills, find out how your utility credits exported power, and get three itemized quotes so you can compare them honestly.
A savings claim is only as useful as the details behind it.
This article offers general information only and is not financial, tax, legal, or electrical advice. For decisions about your business, consult qualified, licensed professionals.
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<!-- Title: Solar for Small Businesses: What Savings Do They Report? -->
<!-- Meta Description: Small businesses report solar savings, but the numbers vary widely. Learn what drives them, how to read the claims, and estimate your own. -->
<!-- Slug: solar-small-business-reported-savings -->
<p><strong>Short answer:</strong> Small businesses that go solar commonly report lower electricity bills, but the size of the savings varies enormously from one business to the next. It depends on your electricity rates, how much power you use during daylight hours, how the system is paid for, and what incentives and export rules apply where you operate. A claim like "we cut our bill in half" can be true and still tell you little about what <em>you</em> would save.</p>
<p>So this article does not hand you a magic percentage. It shows you how to read the savings other businesses report, which factors drive the gap between a great result and a disappointing one, and how to build a realistic estimate for your own premises.</p>
<h2 id="takeaways">Key takeaways</h2>
<ul>
<li>Reported savings are usually <em>bill reductions</em>. They are not always net of loan payments, lease fees, maintenance, or insurance.</li>
<li>Businesses that use most of their power during the day tend to benefit more than those that mostly use it at night.</li>
<li>How you pay (cash, loan, lease, or power purchase agreement) changes what "savings" even means.</li>
<li>Incentives, tax treatment, and export rules change often and differ by country and region. Verify them with official sources before you decide.</li>
<li>This article is general information, not financial, tax, or legal advice for your business.</li>
</ul>
<h2 id="contents">What you'll find here</h2>
<ul>
<li><a href="#what-they-report">What small businesses typically report</a></li>
<li><a href="#drivers">The six factors behind big and small savings</a></li>
<li><a href="#read-claims">How to read a savings claim</a></li>
<li><a href="#models">Buy, loan, lease, or PPA: how the model changes the math</a></li>
<li><a href="#try-it">Try it: a rough savings and payback estimator</a></li>
<li><a href="#wont-work">When solar does not pay off</a></li>
<li><a href="#framework">The three-bill test</a></li>
<li><a href="#faq">Common questions</a></li>
</ul>
<!-- IMAGE: Small shop or workshop with rooftop solar panels in daylight | alt: Small business building with solar panels on its roof -->
<h2 id="what-they-report">What small businesses typically report</h2>
<p>When small business owners describe their results, the same themes come up again and again:</p>
<ul>
<li><strong>A lower or steadier electricity bill,</strong> especially during sunny months.</li>
<li><strong>Protection from future rate rises,</strong> because part of their power now comes from their own system rather than the grid.</li>
<li><strong>A longer payback than the brochure suggested,</strong> when financing costs, maintenance, or roof repairs were not counted at the start.</li>
<li><strong>Non-bill benefits,</strong> such as a sustainability story for customers, though these are hard to price and should not be the basis of your calculation.</li>
</ul>
<p>Notice what is missing: a universal number. Anyone quoting one figure for "the average small business" is simplifying heavily. Treat reported percentages as stories about specific situations, not forecasts.</p>
<blockquote><strong>Rule of thumb:</strong> A savings figure without the business's usage pattern, tariff, and payment model is just a number, not evidence.</blockquote>
<h2 id="drivers">The six factors behind big and small savings</h2>
<h3 id="daytime">1. When you use your power</h3>
<p>Solar generates in daylight. A dental clinic, office, workshop, or cold-storage unit that runs mostly between morning and late afternoon can use much of its own generation directly. A restaurant or venue that peaks in the evening may produce a lot at times it needs little, and then depends on how your utility treats the surplus.</p>
<h3 id="tariff">2. Your tariff structure</h3>
<p>Business bills are rarely a single price per unit. Many include time-of-use rates, fixed monthly charges, and in some cases charges based on your highest short-term demand. Solar generally reduces the energy portion of the bill more reliably than the fixed or demand portions. Two businesses using identical energy can see very different savings for this reason alone.</p>
<h3 id="export">3. What happens to the surplus</h3>
<p>Some utilities credit exported power at full retail value, some at a lower rate, and some do not credit it at all. This rule can swing the economics more than the panels themselves, and it can change over time. Ask your utility what applies now and what has been proposed.</p>
<h3 id="rates">4. Your local electricity price</h3>
<p>The higher your cost per unit, the more each unit of solar output is worth. If grid power is cheap where you are, payback stretches out. If it is expensive or unreliable, solar can look stronger, especially if you would otherwise run a generator.</p>
<h3 id="site">5. Your roof, space, and shading</h3>
<p>Orientation, shade from neighboring buildings, roof age, and structural condition all affect output and cost. A roof that needs replacing soon can add a hidden expense, because panels may have to be removed and reinstalled.</p>
<h3 id="money">6. How the system is paid for</h3>
<p>Cash, loans, leases, and power purchase agreements split costs and benefits in different ways. The next sections show why this matters when you read someone else's results.</p>
<h2 id="read-claims">How to read a savings claim</h2>
<p>Before you take any business's reported result as a benchmark, run it through these questions.</p>
<ol>
<li><strong>Gross or net?</strong> Did "we saved X" mean the bill dropped by X, or that cash in the bank rose by X after loan or lease payments?</li>
<li><strong>Over what period?</strong> A good summer month is not a year. Seasonal swings can be large.</li>
<li><strong>Compared with what?</strong> Compared with the old bill at old rates, or with what the bill would be today at current rates?</li>
<li><strong>What changed besides solar?</strong> New equipment, longer opening hours, or efficiency upgrades also move your bill.</li>
<li><strong>Who is saying it?</strong> An installer's case study is a marketing document. An independent owner's account, or an official report, deserves different weight. Neither replaces your own numbers.</li>
</ol>
<h3 id="quick-check">Quick check</h3>
<p>A café says solar "cut its bill by 40%." Which two facts would you most want before copying that expectation? <em>(Hint: look at the list above. The most useful answers are usually when the café uses its power, and whether the figure is net of financing.)</em></p>
<h2 id="models">Buy, loan, lease, or PPA: how the model changes the math</h2>
<p>The same system can look like a bargain or a burden depending on how it is financed. This table is a general guide. Terms differ by provider and country, so read the actual contract.</p>
<div style="overflow-x:auto; max-width:100%;">
<table style="width:100%; min-width:600px; border-collapse:collapse;">
<thead>
<tr style="background:#f1f5f9;">
<th style="border:1px solid #cbd5e1; padding:8px; text-align:left;">Model</th>
<th style="border:1px solid #cbd5e1; padding:8px; text-align:left;">How it generally works</th>
<th style="border:1px solid #cbd5e1; padding:8px; text-align:left;">Where "savings" can mislead</th>
</tr>
</thead>
<tbody>
<tr>
<td style="border:1px solid #cbd5e1; padding:8px;"><strong>Cash purchase</strong></td>
<td style="border:1px solid #cbd5e1; padding:8px;">You pay upfront and own the system.</td>
<td style="border:1px solid #cbd5e1; padding:8px;">Bill savings look large, but the money tied up could have been used elsewhere in the business.</td>
</tr>
<tr>
<td style="border:1px solid #cbd5e1; padding:8px;"><strong>Loan</strong></td>
<td style="border:1px solid #cbd5e1; padding:8px;">You own the system and repay a lender over time.</td>
<td style="border:1px solid #cbd5e1; padding:8px;">A lower electricity bill can be offset by loan payments. Count both.</td>
</tr>
<tr>
<td style="border:1px solid #cbd5e1; padding:8px;"><strong>Lease</strong></td>
<td style="border:1px solid #cbd5e1; padding:8px;">You pay a fixed fee to use equipment someone else owns.</td>
<td style="border:1px solid #cbd5e1; padding:8px;">Check escalator clauses, end-of-term options, and what happens if you move or sell.</td>
</tr>
<tr>
<td style="border:1px solid #cbd5e1; padding:8px;"><strong>Power purchase agreement (PPA)</strong></td>
<td style="border:1px solid #cbd5e1; padding:8px;">A provider owns the system and sells you its output at an agreed price.</td>
<td style="border:1px solid #cbd5e1; padding:8px;">Savings depend on the contract price versus future grid prices, and prices can step up over time.</td>
</tr>
</tbody>
</table>
</div>
<p><strong>If you rent your premises,</strong> there is an extra question. Landlords and tenants often have split incentives: the tenant pays the bill, but the landlord owns the roof. Get written permission and agree who benefits before spending anything.</p>
<h2 id="try-it">Try it: a rough savings and payback estimator</h2>
<p>This tool turns four numbers into a first-pass estimate. The starting values are <strong>editable examples</strong>, not real data, so replace them with figures from your own bill and quotes. Nothing you type is saved or sent anywhere.</p>
<div id="tool-wrap" class="tool-wrap">
<style>
.tool-wrap{width:100%;max-width:100%;box-sizing:border-box;border:1px solid #cbd5e1;border-radius:10px;padding:16px;background:#f8fafc;color:#0f172a;font-family:inherit}
.tool-wrap *{box-sizing:border-box}
.tool-field{margin-bottom:12px}
.tool-field label{display:block;font-size:16px;font-weight:600;margin-bottom:4px}
.tool-field input{width:100%;max-width:100%;font-size:16px;padding:10px;border:1px solid #94a3b8;border-radius:6px;background:#ffffff;color:#0f172a}
.tool-hint{font-size:14px;color:#334155;margin-top:2px}
.tool-btn{width:100%;font-size:16px;font-weight:700;padding:12px;border:0;border-radius:8px;background:#0f766e;color:#ffffff;cursor:pointer}
.tool-out{margin-top:14px;padding:12px;border-radius:8px;background:#ffffff;border:1px solid #cbd5e1;font-size:16px;line-height:1.5}
.tool-note{margin-top:8px;font-size:14px;color:#334155}
</style>
<div>
<div class="tool-field">
<label for="tool-bill">Average monthly electricity bill (editable example)</label>
<input type="number" id="tool-bill" value="1200" min="0" step="any" inputmode="decimal">
<div class="tool-hint">Use your own currency. Take an average across a full year if you can.</div>
</div>
<div class="tool-field">
<label for="tool-share">Share of your bill solar might offset, in % (editable example)</label>
<input type="number" id="tool-share" value="50" min="0" max="100" step="any" inputmode="decimal">
<div class="tool-hint">Ask installers how they calculated this number and what usage data they used.</div>
</div>
<div class="tool-field">
<label for="tool-cost">Net system cost after any incentives (editable example)</label>
<input type="number" id="tool-cost" value="30000" min="0" step="any" inputmode="decimal">
<div class="tool-hint">Leave out financing costs for this simple version.</div>
</div>
<div class="tool-field">
<label for="tool-extra">Extra yearly costs: maintenance, monitoring, insurance (editable example)</label>
<input type="number" id="tool-extra" value="300" min="0" step="any" inputmode="decimal">
</div>
<button type="button" class="tool-btn" id="tool-go">Estimate</button>
<div class="tool-out" id="tool-result" aria-live="polite">Press Estimate to see a rough result.</div>
<div class="tool-note">Estimate only. It assumes constant prices and output, ignores financing, degradation, and tax effects, and is not financial advice.</div>
</div>
<noscript>This estimator needs JavaScript to run.</noscript>
<script>
(function(){
var out = document.getElementById('tool-result');
function read(id){ return parseFloat(document.getElementById(id).value); }
function bad(x){ return !isFinite(x) || Math.max(x, 0) !== x; }
function run(){
var bill = read('tool-bill');
var share = read('tool-share');
var cost = read('tool-cost');
var extra = read('tool-extra');
if (bad(bill) || bad(share) || bad(cost) || bad(extra)) {
out.textContent = 'Please enter valid numbers of zero or more in every field.';
return;
}
share = Math.min(share, 100);
var annual = bill * 12 * share / 100 - extra;
var rounded = Math.round(annual);
if (Math.max(annual, 0) === 0) {
out.textContent = 'With these inputs the estimated yearly saving is zero or negative, so there is no payback. Re-check your assumptions or ask for a different design.';
return;
}
var years = cost / annual;
out.textContent = 'Estimated yearly saving: about ' + rounded + '. Simple payback: about ' + years.toFixed(1) + ' years. Real results change with rates, weather, usage, and contract terms.';
}
document.getElementById('tool-go').addEventListener('click', run);
})();
</script>
</div>
<p>Try changing one input at a time. You will usually find that the offset percentage and the net cost move the answer the most, which is why those two numbers deserve the hardest questions when you collect quotes.</p>
<h2 id="wont-work">When solar does not pay off</h2>
<p>Honest comparisons include the cases where it disappoints. Common reasons:</p>
<ul>
<li><strong>Low daytime use.</strong> Most of your consumption happens when panels are idle, and exports are poorly credited.</li>
<li><strong>Short time horizon.</strong> You may leave the premises, or the lease may end, before the system pays for itself.</li>
<li><strong>Roof problems.</strong> An aging or unsuitable roof adds cost or limits the system.</li>
<li><strong>Heavily shaded sites.</strong> Output drops, and so does the value.</li>
<li><strong>Contract surprises.</strong> Escalating lease or PPA prices, early-exit fees, or transfer restrictions.</li>
<li><strong>Cheap grid power.</strong> If your tariff is low, each unit generated saves little.</li>
<li><strong>Unexamined quotes.</strong> Oversized systems sold on optimistic assumptions can leave you paying for capacity you cannot use.</li>
</ul>
<p>Efficiency upgrades such as better lighting, refrigeration, or equipment scheduling can sometimes cut a bill more cheaply than generation can, so they are worth pricing alongside solar.</p>
<blockquote><strong>Worth remembering:</strong> The cheapest kilowatt-hour is often the one you never use. Check what you can trim before you size what you need to generate.</blockquote>
<h2 id="framework">The three-bill test</h2>
<p>Here is a quick way to build your own estimate instead of borrowing someone else's. Gather three things:</p>
<ol>
<li><strong>Twelve months of bills.</strong> They show your seasonal pattern and your real average, not a single lucky or unlucky month.</li>
<li><strong>Your tariff details.</strong> Identify the time-of-use periods, fixed charges, and any demand charges, so you know which parts of the bill solar can actually reduce.</li>
<li><strong>Three itemized quotes.</strong> Compare system size, expected output assumptions, equipment, warranties, and total price on the same basis. If a quote cannot be compared line by line, ask for it to be reissued.</li>
</ol>
<p>Then put the figures through the estimator above and ask what changes if prices rise, fall, or stay flat. If the project only works under the rosiest assumption, treat that as information.</p>
<h3 id="before-you-sign">Questions to ask before signing</h3>
<ul>
<li>What usage data and tariff did you use to calculate my expected savings?</li>
<li>What is the production guarantee, if any, and what happens if output falls short?</li>
<li>Who handles permits, utility approval, and inspection?</li>
<li>What do the equipment and workmanship warranties cover, and for how long?</li>
<li>What are the exit terms if I move, sell, or close?</li>
</ul>
<h2 id="faq">Common questions</h2>
<h3>How much can a small business save with solar?</h3>
<p>There is no reliable single figure. Results range widely depending on usage timing, tariff, export rules, system size, and financing. Build an estimate from your own bills and itemized quotes instead of relying on an average.</p>
<h3>Are incentives available for business solar?</h3>
<p>Many countries and regions offer some mix of tax treatment, grants, or favorable tariffs for businesses, but programs change often and eligibility rules differ. Check your government energy agency, tax authority, and utility directly, and ask a qualified tax adviser how they apply to your business.</p>
<h3>Is leasing or a PPA better than buying?</h3>
<p>It depends on your priorities. Leases and PPAs reduce upfront cost but can limit long-term savings and flexibility. Buying costs more at the start and leaves you responsible for maintenance. Compare the total cost over the full contract period, including escalators and exit terms.</p>
<h3>Do I need batteries?</h3>
<p>Not necessarily. Batteries add cost and can help if you pay high peak prices, face outages, or receive little credit for exports. For many businesses, a system without storage is a simpler first step. Ask installers to show the numbers both ways.</p>
<h3>What if I rent my premises?</h3>
<p>Get your landlord's written agreement first, and settle who owns the equipment, who pays for roof repairs, and what happens at the end of your tenancy.</p>
<h2 id="conclusion">The bottom line</h2>
<p>Small businesses do report real savings from solar, but those results reflect specific usage patterns, tariffs, and deals. The smartest way to use their stories is as a list of questions to ask, not a number to expect. Your next step: collect twelve months of bills, find out how your utility credits exported power, and get three itemized quotes so you can compare them honestly.</p>
<blockquote>A savings claim is only as useful as the details behind it.</blockquote>
<p><em>This article offers general information only and is not financial, tax, legal, or electrical advice. For decisions about your business, consult qualified, licensed professionals.</em></p>
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