Do write-offs lower your sale price? Only the ones you can't prove

A question comes up a lot from owners who plan to sell someday. If I spend years keeping my taxes as low as the rules allow, am I shrinking the price I'll get later? It's a fair worry. A buyer pays a multiple of earnings, and your tax return shows less of them.

For the most part, no, as long as a buyer can see through your deductions. Buyers price your business on adjusted earnings, and the profit line of your tax return is only the starting point. For most Main Street businesses that's seller's discretionary earnings, which is pretax profit plus one owner's full pay and benefits, interest, depreciation and one-time costs. Larger deals usually use EBITDA, which works the same way but swaps your pay for what a manager would cost.

Real business costs like rent, payroll, supplies and the equipment you use stay costs, because a new owner pays them too, and the tax you saved on them doesn't touch the price. Owner-related and noncash deductions are usually add-backs: your own pay and benefits (including health insurance and retirement contributions the business deducted), depreciation, interest, and a one-time legal bill or repair. Those go back into earnings before the multiple is applied. Done right, a big depreciation deduction or a larger contribution to your own retirement doesn't lower what the business is worth, though heavy depreciation can mean recapture, taxed as ordinary income, when the assets are sold, so run it past your CPA.

Owners lose money when add-backs can't be proven. An add-back only counts if the buyer believes it. A buyer will check each one against your books, your bank statements and your tax returns, and the ones they can't verify get discounted or dropped. Say a buyer pays two and a half times earnings and you claim $40,000 of add-backs you can't support. Losing them takes $100,000 off the price, even if every deduction behind them was legitimate. Those numbers are only an example, but the math works the same at any size.

Lenders apply the same test. Many small business purchases are paid for with a bank loan, often an SBA loan, and lenders usually size the loan from your last year or two of tax returns plus the add-backs they can verify. Current SBA rules don't let them lean on projections. If the lender won't count an add-back, the buyer can't borrow against it, and the price often comes down to what the loan supports.

Add-backs work in the other direction too. Seller's discretionary earnings assumes the buyer steps into your job, and only your job. If you also cover a second full-time role, like running the crew and doing all the estimating, or a family member works in the business for little or no pay, a buyer will usually subtract what it would cost to hire someone for that work. Owner dependence hits the price a different way. When the customers, the know-how or the license run through you personally, buyers tend to pay a lower multiple, lean harder on a seller note, or keep you on for a longer transition. If the buyer isn't using an SBA loan, part of the price may also ride on how the business does after you leave. SBA loans don't allow that kind of earnout. Getting the business to run without you every day protects the price too, and it takes longer to fix than the books do.

Personal expenses run through the business are a different matter. If something isn't a legitimate business expense, deducting it is a tax problem today, and buyers and lenders often discount or reject it, especially without documentation. Cash that never makes it into the books works the same way. Income you can't show doesn't count toward the price.

So the work in the two to three years before a sale is making every add-back provable. Buyers and lenders usually want two to three years of tax returns plus your current-year financials, and those are the years they'll test. Keep clean books every month, with business and personal spending fully separate. Keep an add-back log and record each item as it happens, with the receipt or invoice attached, because rebuilding three years of add-backs at the end is where many of them fall apart. Pay yourself a steady, documented amount, so a buyer can see what the business earns before and after someone is paid to run it.

Bring your CPA into it as you get closer. Some owners choose to show more profit in the last year or two, mainly to make the story simpler for a lender or to clear out items that would be hard to prove. Whether that's worth it comes down to your numbers, your entity and how the deal is set up. If the deal is large enough, a quality of earnings review before you go to market can find the soft spots before a buyer's team does.

None of this has to wait until you're ready to sell. Clean books and a documented add-back log make the business easier to run and easier to borrow against while you still own it.