Tax Preparation & Bookkeeping in White Plains, NY
London's Tax Services provides tax preparation, tax planning, bookkeeping and payroll for White Plains individuals, families and small businesses from our office at 75 South Broadway, 4th Flr, in downtown White Plains. We have over 20 years of experience and a 4.9 star Google rating, and we work with clients in person or entirely remotely. The first 15 minute consultation is free.
Is there a tax preparer in White Plains who works year round?
Yes. London's Tax Services is open year round at 75 South Broadway, 4th Floor, in downtown White Plains, not just from January to April. We prepare current and late returns, answer IRS and New York State notices, and do bookkeeping, payroll and tax planning every month of the year. The fee is quoted before we start, never as a percentage of your refund.
Westchester's business center
As the county seat, White Plains is home to a dense mix of professional firms, consultancies and independent practices. A large share of our work here is with people who bill their own clients: consultants, therapists, lawyers, designers, IT contractors and medical practitioners. Their tax questions repeat from year to year, which means the planning is genuinely repeatable.
Personal service and a real quote
White Plains has no shortage of large accounting firms. What we hear from clients who move to us is that they wanted the person doing the work to be the person they can actually reach, and they wanted to know the fee before the work started rather than after.
Bookkeeping services for White Plains small businesses
Most of the White Plains businesses we keep books for are owner-run: professional practices, contractors, restaurants and shops along Mamaroneck Avenue, and consultants working from home. We reconcile your bank and card accounts every month, produce a profit and loss statement and balance sheet you can actually read, and run payroll with the New York payroll tax filings on schedule. If the books have fallen months or years behind, we rebuild them from your statements with a fixed quote before we start. Because the same team prepares your tax return, nothing has to be reconstructed in April.
Open year round, not just in tax season
Seasonal tax offices and free filing programs close after April. IRS letters, late returns, extension filings and the planning that has to happen before December 31 do not. We work from the same White Plains office all twelve months, Monday to Friday 9 AM to 5 PM and Sunday afternoons 1 PM to 4 PM, and the person who prepares your return in March is the person who answers the phone in September.
Tax, bookkeeping and payroll under one roof
Most White Plains clients use more than one of these. Keeping them together means your return is built from books we already know are clean, and your plan is built from both.
Tax preparation
Individual and family returns, plus LLCs, S corporations and partnerships. Rental property, income from more than one state, amended returns and IRS or New York State notices.
Tax preparation servicesTax planning
Year-round planning for business owners and high earners: S corp and entity decisions, retirement plans, the New York PTET and the moves that have to happen before December 31.
Tax planning servicesBookkeeping and payroll
Monthly bookkeeping, account reconciliations and financial statements, with payroll and New York payroll tax filings handled on schedule.
Bookkeeping servicesCatch-up bookkeeping
Months or years behind? We rebuild your books from bank and card statements, with a fixed quote before we start.
Catch-up bookkeepingTax issues that come up here
No city income tax, but the commute matters
White Plains has no city income tax. In New York State only New York City and Yonkers tax their residents' income, so a White Plains household files federal and New York State returns. The commute is where it gets complicated: if you work in Connecticut, you also file a Connecticut nonresident return and claim New York's credit for the tax you paid there, so the same wages are not taxed twice. Commuting into Manhattan is simpler, because New York City does not tax nonresidents' wages.
High property taxes and the 2026 SALT cap
Westchester property taxes are among the highest in the country, which makes the state and local tax deduction a large number for most White Plains homeowners. For 2026 the cap is $40,400, up from $10,000 before 2025, and it shrinks once modified AGI passes $505,000, though never below $10,000. Plenty of households that took the standard deduction for years now come out ahead itemizing again. It is a real calculation each year, not a rule of thumb.
Quarterly estimated payments
If you bill your own clients, nobody is withholding tax for you. Underpaying through the year means penalties even if you pay in full by April. We set realistic quarterly estimates and revisit them mid-year when income changes, rather than repeating last year's figure and hoping.
The MCTMT threshold just went up
White Plains is inside the MTA commuter district, so self-employed people working here have paid the Metropolitan Commuter Transportation Mobility Tax once their net self-employment earnings in the district passed $50,000. From tax year 2026 the threshold is $150,000, at a rate of 0.34% in Westchester. Many consultants and sole proprietors who paid it for 2025 will owe nothing for 2026, which is worth reflecting in this year's estimated payments.
Home office and the qualified business income deduction
Two of the most valuable and most misapplied deductions for self-employed White Plains professionals. The home office deduction has a genuine exclusive-use requirement, and the qualified business income deduction has income thresholds and service-business limitations that catch out exactly the professions most common here. Both are worth claiming correctly and worth not overreaching on.
Retirement plans as a tax strategy
For a profitable solo practice, the choice between a SEP IRA, a solo 401(k) and a defined benefit plan is often the single largest lever available on the return. The right answer depends on your profit, your age and whether you have employees, and it needs deciding before the relevant deadlines rather than at filing time.
Beyond filing
Want to lower next year's bill, not just file this one?
We also work with White Plains business owners and families all year on tax planning in White Plains and Westchester: entity and S corp decisions, retirement plans, New York PTET and year-end moves.
Areas we cover in and around White Plains
- Downtown White Plains
- Battle Hill
- Fisher Hill
- Gedney Farms
- Highlands
- North Street
- Rosedale
- Nearby Scarsdale, Harrison and Greenburgh
Getting to our office
Our office at 75 South Broadway is in downtown White Plains, a short taxi or bus ride from the White Plains station, the main hub on the Metro-North Harlem Line and about 40 minutes from Grand Central.
75 South Broadway, 4th FlrWhite Plains, NY 10601
We are on the 4th floor of 75 South Broadway, a short walk from the Mamaroneck Avenue shops and restaurants. Office hours are Monday to Friday 9 AM to 5 PM and Sunday 1 PM to 4 PM; we are closed on Saturday. Call (646) 917-7714 before you come in so the right person is free to sit down with you. If coming in is not convenient, we meet by phone or video too.
Schedule a Consultation
Pick a time that works for you. Our 15-minute consultation is the easiest way to get started.
White Plains tax questions we get asked
Who is the best tax preparer in White Plains, NY?
The best fit depends on your return. Look for a PTIN, experience with returns like yours and a fee quoted up front. London's Tax Services is an independent, year-round firm on the 4th floor of 75 South Broadway with over 20 years of experience and a 4.9 star Google rating, and it prepares both personal and small business returns.
Where can I get my small business taxes done in White Plains?
London's Tax Services prepares small business returns at 75 South Broadway, 4th Floor, White Plains, NY 10601: sole proprietors on Schedule C, LLCs, S corporations and partnerships, with New York State filings, payroll taxes and quarterly estimates. We can also keep the books all year, so the return is built from clean numbers. The first 15 minute call is free.
Do you meet White Plains clients in person?
Yes. Our office is at 75 South Broadway, 4th Flr, in downtown White Plains, near the White Plains Metro-North station. Some clients prefer to work with us entirely remotely, exchanging documents securely online.
Does White Plains have a city income tax?
No. In New York State only New York City and Yonkers impose their own income tax on residents. White Plains residents file federal and New York State returns, plus a nonresident return for any other state where they earned wages, such as Connecticut.
I live in White Plains and work in Connecticut. Where do I file?
In both states. You file a Connecticut nonresident return for the wages earned there, and your New York resident return claims a credit for the Connecticut tax, so the same income is not taxed twice. The credit calculation is where self-prepared returns most often go wrong.
How much does tax preparation cost in White Plains?
It depends on the complexity of the return, not the size of your refund. A straightforward individual return costs considerably less than a business return with a Schedule C, rental property or income from more than one state. We quote the fee before we start.
Do you also do bookkeeping and payroll for White Plains businesses?
Yes. We handle monthly bookkeeping, catch-up bookkeeping when the books have fallen behind, and payroll with New York payroll tax filings, so your tax return is prepared from books we already know are clean.
I am self-employed in White Plains. How do quarterly taxes work?
Nobody withholds tax on income you bill yourself, so you make estimated payments four times a year. Underpaying during the year triggers penalties even if you settle up by April. We set the estimates and revisit them when your income changes.
Can I claim a home office deduction?
Possibly, but the space must be used regularly and exclusively for business. A dining table that doubles as a desk does not qualify. Where it does apply it is worth claiming properly, and we will tell you plainly if it does not.
What is the qualified business income deduction?
A deduction of up to 20 percent of qualified business income for eligible pass-through businesses, made permanent in 2025. Income thresholds and limitations on specified service businesses apply, which affects many White Plains professionals, so eligibility needs checking rather than assuming.
Are you open after tax season?
Yes. We work year round, Monday to Friday 9 AM to 5 PM and Sunday 1 PM to 4 PM (closed Saturday). October through December is when we file late and extended returns, answer IRS letters and do year-end tax planning before December 31. Call (646) 917-7714 or book a free 15 minute call.
What should I ask before hiring a tax preparer in White Plains?
Ask for their PTIN and credentials, whether they have done returns like yours (self-employed, rental property, a Connecticut commute), how the fee is set, and whether you review the return before it is filed. Walk away from anyone who charges a percentage of your refund.
How much does bookkeeping cost for a White Plains small business?
It depends on how many accounts and transactions you have each month and whether payroll is included, not on a fixed package. After a free 15 minute call we quote the monthly fee before any work starts. Catch-up work for months or years behind is quoted separately, also up front.
Which office at 75 South Broadway is yours?
We are London's Tax Services, LLC on the 4th floor of 75 South Broadway, White Plains, NY 10601. Call (646) 917-7714 before you come in so the right person is free to sit down with you.
Other areas we serve
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