A new contract, a growing side business, or rental income can create a tax obligation long before tax filing season arrives. If no employer is withholding taxes from that income, the question becomes: when do estimated taxes start? For many taxpayers, they start as soon as you expect to owe enough federal tax for the year and receive income that is not being covered by withholding.

Estimated taxes are not an extra tax or a penalty for being self-employed. They are simply a way to pay income tax, self-employment tax, and certain other taxes as you earn income. Understanding the timing can help you avoid an unexpected balance or underpayment penalty next spring.

When Do Estimated Taxes Start for You?

Estimated tax payments generally begin when you have income that does not have enough tax withheld and you expect to owe at least $1,000 in federal tax when you file your return, after subtracting withholding and refundable credits.

This often applies to freelancers, independent contractors, gig workers, small business owners, landlords, and people receiving investment income. It may also apply to retirees whose withholding does not cover taxable pension withdrawals, Social Security benefits, or required distributions from retirement accounts.

The key point is that estimated taxes do not automatically begin because you opened an LLC, received a 1099, or started a side hustle. Your total tax situation matters. A new business owner with a small profit, substantial W-2 withholding from another job, or tax credits may not need quarterly payments. On the other hand, someone with no withholding may need to begin planning after the first profitable months of the year.

For example, if you leave a W-2 position in March and begin consulting in April, your former employer’s withholding may cover part of your annual tax bill. But if your consulting income grows and no taxes are being withheld, you may need to make estimated payments for the rest of the year.

The Federal Estimated Tax Due Dates

Federal estimated tax is commonly called quarterly tax, but the payment periods are not equal calendar quarters. For most individual taxpayers, payments are generally due on the following schedule:

• April 15 for income received from January 1 through March 31
• June 15 for income received from April 1 through May 31
• September 15 for income received from June 1 through August 31
• January 15 of the following year for income received from September 1 through December 31

If a due date falls on a weekend or federal holiday, the deadline generally moves to the next business day. Dates can also be affected by special federal disaster relief, so it is wise to confirm the deadline for the year you are paying.

The January payment is easy to overlook because it arrives after the holidays. If you file your federal return and pay the full balance by the end of January, you may be able to skip that January estimated payment. However, filing early only makes sense if your records are complete and accurate.

Who Usually Needs to Pay Estimated Taxes?

Self-employed taxpayers are the group most likely to need estimated payments. This includes sole proprietors, independent contractors, consultants, rideshare drivers, home-based business owners, and many people who receive 1099 forms. Their estimated payments usually cover both income tax and self-employment tax, which helps fund Social Security and Medicare.

Business owners with an S corporation, partnership, or LLC may also need estimated payments on their share of business income. The correct approach depends on how the business is taxed, whether the owner receives wages, and how much tax has already been paid during the year.

Other income sources can create the same need. A landlord with rental profit, an investor with taxable dividends or capital gains, or an individual receiving substantial unemployment compensation may need to make payments. Winning a prize, selling property for a gain, or taking a large retirement distribution can also change the picture.

W-2 employees should not assume they are exempt. If you have a job and a side business, increasing withholding from your paycheck can sometimes be easier than sending separate estimated payments. Withholding is generally treated as paid evenly throughout the year, even if it comes later in the year. That can be useful when income was higher than expected or a taxpayer is getting a late start on tax planning.

How Much Should You Pay?

There are two practical ways to estimate your payments. The first is to project your income, deductions, credits, and taxes for the full year, then divide the expected amount into payments. This approach can be more accurate, especially when income is steady.

The second is to use a safe-harbor method. In general, you may avoid a federal underpayment penalty if you pay at least 90% of the tax shown on your current-year return, or 100% of the tax shown on your prior-year return. The prior-year amount increases to 110% if your prior-year adjusted gross income was more than $150,000, or more than $75,000 for married taxpayers filing separately.

These rules have conditions. Your prior-year return generally must cover a full 12-month year, and paying enough to avoid a penalty does not mean you will not owe a balance when you file. It simply provides a payment benchmark. If your income is rising, using last year’s tax may leave you with a large amount due at filing time.

For people whose income changes from month to month, paying four equal amounts may not fit the real situation. A seasonal business, real estate sale, or year-end bonus can create income later in the year. In those cases, an annualized income approach may allow payments to better match when income was actually received. Good records are especially valuable when using this method.

Maryland Estimated Taxes May Also Apply

Federal payments are only part of the planning conversation for Maryland residents and business owners. Maryland may require estimated income tax payments if you expect to owe $500 or more in state and local income tax after withholding and credits. State rules, thresholds, and payment instructions are separate from the federal system.

If you live in Maryland but earn income in another state, or if you have moved during the year, the calculation may be more involved. Local income tax, nonresident filings, and credits for taxes paid to another state can affect the result. Rather than sending a number based only on federal taxes, review your Maryland situation as well.

A Simple Way to Stay Prepared

The most helpful habit is to set aside part of each payment you receive before spending it. The right percentage depends on your income, business expenses, filing status, other household income, and state taxes. There is no single percentage that fits every taxpayer.

Keep business income and expenses organized throughout the year. Save invoices, receipts, mileage records, bank statements, and payment confirmations. If you are paid through several apps or platforms, track the total income yourself rather than waiting for year-end forms. A missing form does not make the income non-taxable.

You can make estimated payments electronically, by phone, or by mail using the appropriate payment voucher. After each payment, keep the confirmation with your tax records. This makes filing easier and helps show what has already been paid.

If you have just started earning self-employment income, do not wait until the next tax season to ask questions. A midyear review can show whether you should begin estimated payments, adjust paycheck withholding, or simply build a reserve for taxes. Elvisio Tax Services LLC can help clients review their income and records with clear, personalized guidance.

A timely conversation is often less stressful than trying to fix a surprise tax balance after the year has ended. When your income changes, let your tax plan change with it.