50 Personal Tax Tips

Hold onto copies of your filed returns and supporting documents for at least three years from the filing date, since that's generally how far back the IRS can look when reviewing a return.

If you claim a loss from worthless securities or a bad debt deduction, keep those records for up to seven years.

A single folder — physical or digital — per tax year makes it far easier to hand a complete picture to your preparer than folders sorted by document type.

A canceled check or bank statement alone often isn't enough. Keep receipts, invoices, or written acknowledgments that show what the expense was for.

Keep purchase documents and records of capital improvements for as long as you own the home, plus several years after you sell it.

A scanned copy saved only on one hard drive isn't backed up. Keep a copy in the cloud or on a second device too.

The federal deadline typically falls in mid-April, but it can shift slightly depending on weekends and holidays. Confirm the exact date each year rather than assuming.

Filing an extension gives you more time to submit your return, but any tax owed is still due by the original deadline to avoid penalties and interest.

The penalty for not filing is generally steeper than the penalty for not paying, so file on time and work out payment separately.

The IRS has been phasing out paper refund checks in favor of direct deposit and other electronic options, so this isn't just the faster choice anymore — it's becoming the default. Make sure your banking information is on file, and you can even split your refund across multiple accounts if you want.

Your filing status affects your standard deduction and tax brackets, and it's worth confirming which one actually applies, especially after a life change.

A missing signature is one of the most common reasons a paper return gets kicked back or delayed.

Electronic filing is processed faster and has a much lower error rate than paper returns.

A deduction reduces the income you're taxed on. A credit reduces your tax bill directly, dollar for dollar, so credits are generally more valuable.

Property taxes and state income or sales tax may be deductible if you itemize, subject to current limits.

Small recurring donations add up. Keep receipts or bank records for cash gifts and a written acknowledgment for larger ones.

If you're close to the threshold where itemizing beats the standard deduction, timing larger deductible expenses into the same year can sometimes help.

These can be deductible above a certain percentage of income. Save receipts even if you're not sure you'll clear the threshold.

Credits for tuition and related expenses have income limits, but they're higher than many people expect.

A marriage, divorce, new job, or new dependent can all affect how much tax should be withheld from your paycheck.

If part of your home is used regularly and exclusively for business, it may qualify for a home office deduction.

Contributions to certain retirement accounts can often still be made up until the filing deadline and counted for the prior tax year.

Traditional accounts typically defer tax until withdrawal. Roth accounts are typically funded with after-tax dollars but grow tax-free.

Selling investments at a loss can sometimes offset gains elsewhere, but the rules around timing and repurchasing similar investments are specific.

Just because you didn't take the cash doesn't mean it isn't reportable.

Without accurate cost basis records, you may end up overpaying tax on an investment sale.

If you're at the age where retirement account withdrawals become mandatory, missing the deadline can trigger a steep penalty.

They're separate from your will and determine who receives many retirement and investment accounts directly.

These change your filing status and can affect withholding, dependents, and deductions.

Dependents can affect eligibility for several tax credits, and the rules for who can claim a child are specific when parents don't live together.

A dependent's age and student status affect which credits apply.

Money or property you inherit isn't usually taxed as income to you, but what you do with it afterward might be.

A mismatch between your return and Social Security's records can delay processing.

State tax rules vary widely, and a mid-year move may mean filing part-year returns in two states.

Whether payments are considered alimony can affect who reports the income, depending on when the agreement was finalized.

Improvements that add value can increase your cost basis and reduce taxable gain when you sell. Routine repairs generally don't.

Keep your year-end mortgage statement, which typically summarizes the interest paid.

Many homeowners qualify for an exclusion on gain from selling a primary residence, within limits.

Depending on the type of loan and how the points were structured, they may be deductible in the year paid or spread over the loan term.

Certain energy-efficient upgrades to a home can qualify for tax credits. Keep manufacturer certifications and receipts.

Cash payments, gig work, and freelance income are all reportable, even without a form documenting it.

Without an employer withholding tax from every payment, it's easy to underestimate what you'll owe.

If you expect to owe a meaningful amount with no withholding to cover it, quarterly payments help you avoid an underpayment penalty.

A dedicated bank account or card for side income makes recordkeeping far easier at tax time.

Contemporaneous mileage logs are far more reliable than trying to reconstruct a year of trips in April.

Certain business expenses, and sometimes a portion of self-employment tax itself, may be deductible.

A single transposed digit is one of the most common reasons a return gets rejected or delayed.

Employers and financial institutions send copies of your W-2s and 1099s directly to the IRS. Make sure your return doesn't leave any of them out.

Most notices include a deadline, and responding early usually preserves more options than waiting.

A quick question before filing is almost always easier to resolve than an amended return after the fact.