Do-It-Yourself Tax Tips For Last-Minute Filers

Key Tax Deadlines

State deadlines in the US usually match the federal date, but a few differ. Check your state revenue department's site.

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Gather Everything Before You Start

Missing forms cause more last-minute delays than anything else. Before you open any software, collect:

• W-2s from every employer and 1099-NEC or 1099-K forms for freelance or app-based income
• 1099-INT and 1099-DIV for bank interest and dividends, and 1099-B for stock sales
• Form 1099-DA from any crypto exchange you sold on, plus your own records for coins moved in from a wallet
• 1098 for mortgage interest, 1098-E for student loan interest and 1098-T for tuition
• Last year's return, Social Security numbers and birthdates for everyone on the return, and your bank routing and account numbers for a direct-deposit refund

Our list of common tax forms you'll need to file explains what each one reports.

Choose How To File

Filing electronically is faster and catches math errors. The IRS issues most e-filed refunds with direct deposit in under 21 days.

• IRS Free File. Guided software from IRS partners at no cost if your AGI is $95,000 or less, the limit the IRS now lists, up from $89,000 for 2025 returns. Free File reopens in January 2027. Free File Fillable Forms have no income limit but give no guidance.
• IRS Direct File. The IRS didn't offer Direct File in the 2026 filing season and hasn't set a date for it to return.
• VITA and TCE. IRS-certified volunteers prepare returns for free for people with moderate incomes, people with disabilities and older filers.
• Paid software. TurboTax and similar products handle more complex returns, including stock and crypto sales, rental income and self-employment.

Don't Miss The New Deductions

The One Big Beautiful Bill Act added several deductions for tax years 2025 through 2028. Last-minute filers miss these because they're new and some don't appear on a W-2 automatically.

You can take these whether or not you itemize, on the new Schedule 1-A attached to Form 1040, according to the IRS. For 2026, your W-2 shows tips and overtime in box 12 (codes TP and TT), and lenders report car loan interest on Form 1098-VLI. The 2026 standard deduction is $16,100 for single filers, $24,150 for heads of household and $32,200 for married couples filing jointly.

Report Your Crypto Correctly

Every Form 1040 asks whether you received, sold, exchanged or otherwise disposed of a digital asset during the year. Answer it honestly, even if you only bought and held, in which case the answer is generally no.

Selling crypto for cash, trading one coin for another and paying for something with crypto are all taxable sales that go on Form 8949. Staking rewards and crypto paid for work count as income at their value when you receive them. Our pages on crypto tax rates and reporting crypto losses cover the details.

Form 1099-DA is new. For 2025 sales, brokers reported gross proceeds only. For 2026, they also report cost basis on coins bought on or after January 1, 2026 and held on that exchange the whole time. Older coins and anything moved between wallets still need your own basis records, which tools such as Koinly, CoinTracker and ZenLedger can rebuild from exchange exports. US citizens living abroad with foreign exchange accounts should also read our page on FBAR reporting for crypto.

Don't Go Too Fast

Rushing is when mistakes happen, and a mismatch with an IRS form delays your refund or triggers a notice. Before you submit:

• Recheck names, Social Security numbers and birthdates against the cards
• Confirm every W-2 and 1099 total matches what you typed
• Compare your 1099-DA proceeds to your own records, since a missing cost basis can make a sale look like pure profit
• Run the software's error check and fix each flag
• Double-check bank details for direct deposit

If You Can't File Or Pay On Time

File Form 4868 by April 15, 2027 for an automatic six-month extension. You can do it through tax software, Free File, or by paying part of your balance with IRS Direct Pay and marking it as an extension payment.

If you owe and can't pay in full, file anyway and pay what you can. The IRS offers short-term plans of up to 180 days and longer installment agreements if you owe $50,000 or less in combined tax, penalties and interest. If you file more than 60 days late, the minimum penalty for returns due in 2027 is $535 or 100% of the tax owed, whichever is less, according to IRS Revenue Procedure 2025-32.

What To Watch Out For

• Extensions don't extend payment. Pay your estimated balance by April 15 to limit penalties and interest.
• Unreported crypto. The IRS now gets 1099-DA data directly from exchanges, so unreported sales will show up as mismatches.
• Scam calls and texts. The IRS starts contact by mail. It doesn't demand payment by gift card, crypto or wire.
• Self-employment tax. Side income of $400 or more in net earnings owes 15.3% self-employment tax on top of income tax.

FAQ

When Are 2026 Taxes Due?

US federal returns for tax year 2026 are due Thursday, April 15, 2027. With an extension, the filing deadline moves to Friday, October 15, 2027, but payment is still due in April.

What Happens If I Miss The Tax Deadline?

If you're owed a refund, there's no penalty for filing late, though you have three years to claim it. If you owe, the late-filing penalty is 5% of the unpaid tax per month up to 25%, plus a 0.5% monthly late-payment penalty and interest.

Do I Have To Report Crypto If I Didn't Sell?

Buying and holding crypto with dollars isn't a taxable event, so there's nothing to report on Form 8949. Staking rewards, airdrops and crypto earned as pay are income in the year you receive them, even if you never sold.

Can I File My Own Taxes For Free?

Yes, if your income is under the IRS Free File limit, or if you use Free File Fillable Forms. VITA volunteers also prepare returns for free for qualifying filers.

Is It Better To File An Extension Or File Something Quickly?

If you're missing forms or have complicated crypto or business records, an extension is safer than guessing. Pay your best estimate of tax owed by April 15 and file the full return before October 15.