N-400 Cost — Filing Fees & Hidden Expenses (2026)

N-400 Cost — Filing Fees & Hidden Expenses (2026)

The official N-400 cost published by USCIS is $710. $640 for the filing fee plus $70 for biometrics. But here's what that number doesn't tell you: the median applicant we've worked with at the Law Offices of Peter D. Chu spends between $1,200 and $3,500 by the time they complete the naturalisation process. The gap between the published fee and the actual out-of-pocket expense comes from three areas USCIS doesn't itemise. Document preparation, legal review for eligibility issues, and the cost of correcting mistakes after submission.

We've guided clients through this process since 1981. The applicants who budget only for the $710 fee are the ones most likely to face processing delays, rejection, or requests for evidence that require additional legal work. The ones who approach the N-400 cost as a multi-component investment. Not just a filing fee. Complete the process faster and with fewer complications.

What is the actual N-400 cost in 2026?

The N-400 cost in 2026 consists of a $640 USCIS filing fee and a $70 biometrics fee, totalling $710. Applicants who qualify for fee reduction pay $320 plus $70 biometrics ($390 total). Those below 200% of the Federal Poverty Guidelines may qualify for a full waiver. Legal preparation fees typically add $500–$2,500 depending on case complexity, and additional expenses such as certified translations, travel for interview appointments, and document retrieval can add $200–$500 to the total.

The distinction that matters: the $710 government fee covers processing, but it doesn't cover preparation. Most denials and delays stem from errors in the application itself. Incomplete work history, inconsistent dates, failure to disclose prior arrests. Not from lack of eligibility. Correcting those issues after submission costs more than preventing them upfront. This article covers the full N-400 cost breakdown, the specific line items most applicants miss, and the three decision points that determine whether you spend closer to $1,200 or $3,500.

Filing Fee Components and Payment Methods

The N-400 cost has three tiers depending on income and financial circumstances. The standard fee is $710. $640 for the filing fee and $70 for biometric services. Applicants with household income between 150% and 200% of the Federal Poverty Guidelines qualify for a reduced fee of $320 plus the $70 biometrics charge, totalling $390. Those with household income below 150% of the Federal Poverty Guidelines can request a full fee waiver by filing Form I-912 alongside the N-400 application.

Payment methods accepted by USCIS include personal checks, cashier's checks, money orders payable to 'U.S. Department of Homeland Security' (not 'USCIS'), and credit card payments when filing online. Checks must include the applicant's full name and Alien Registration Number on the memo line. Online filers pay by credit or debit card at the time of submission. Paper filers must include payment with the mailed application. Applications received without payment are rejected and returned unprocessed, which delays the case by 4–6 weeks.

The fee waiver process requires documentation: tax transcripts for the most recent tax year, proof of current public benefits (SNAP, Medicaid, SSI, TANF), or proof of financial hardship such as medical debt or unemployment. Form I-912 must demonstrate that paying the fee would cause substantial hardship. USCIS adjudicators review waiver requests on a case-by-case basis. Approval is not automatic even when income falls below the poverty threshold. Applications submitted with incomplete waiver documentation are rejected, requiring resubmission and additional processing time.

Legal Preparation and Consultation Costs

The preparation phase accounts for the largest variance in total N-400 cost. Applicants who file without legal review typically spend only the $710 government fee but face higher rates of requests for evidence (RFE), interview complications, and denials. Applicants who retain immigration counsel for case review and preparation pay $500 to $2,500 in legal fees depending on case complexity.

Simple cases. Continuous residence maintained, no criminal history, no travel exceeding six months, consistent tax filing, stable employment. Typically require 2–4 hours of attorney time for document review and application preparation, which costs $500–$1,000. Complex cases add layers that require additional legal analysis. Prior arrests (even if charges were dismissed), periods of unemployment longer than 90 days, unpaid taxes, selective service registration issues, or extended international travel require documentation, legal memoranda, and explanation letters that add $1,000–$2,000 to preparation costs.

Our firm's experience across hundreds of naturalisation cases shows a clear pattern: the cost of legal preparation is inversely correlated with the cost of resolving post-submission issues. Applicants who skip the preparation phase to save money end up paying more in RFE responses, supplemental documentation, and delay-related expenses. The median RFE response requires 6–10 hours of attorney time at $200–$350 per hour, plus courier fees, certified translations, and document retrieval. Total cost typically $1,500–$3,000. Preventing the RFE through upfront preparation costs less and preserves the processing timeline.

At the Law Offices of Peter D. Chu, we conduct an initial eligibility assessment before advising clients whether to proceed with the N-400. That consultation identifies potential issues that would result in denial. Undisclosed criminal history, failure to meet continuous residence requirements, tax compliance gaps. And allows the applicant to resolve them before filing. Filing an N-400 prematurely costs $710 in non-refundable fees and creates a denial record that complicates future applications.

N-400 Cost: Fee Type Comparison

Additional Expenses Beyond the Filing Fee

The N-400 cost extends beyond government fees and legal preparation into several ancillary expenses that vary by applicant circumstances. Certified translations of foreign-language documents cost $25–$75 per page depending on language and certification requirements. Applicants who were born outside the U.S., married abroad, or have foreign employment history typically need translations of birth certificates, marriage certificates, divorce decrees, and employment letters. A straightforward case with 5–8 pages of foreign documents incurs $150–$400 in translation costs.

Travel to the USCIS field office for biometric appointments and naturalisation interviews adds costs that depend on distance. Applicants who live within 50 miles of the field office typically spend $20–$50 on transportation per visit. Those who live farther or in rural areas may incur overnight lodging, airfare, and meal expenses totalling $200–$500 per trip. USCIS does not reimburse travel costs and does not routinely approve requests to reschedule interviews for financial hardship.

Document retrieval fees apply when applicants need certified copies of records from government agencies. Certified birth certificates cost $15–$50 depending on the issuing state. Court disposition records for arrests or citations cost $10–$75 per document depending on the jurisdiction. Tax transcripts are free when requested directly from the IRS but take 5–10 business days to arrive by mail. Expedited copies ordered through third-party services cost $50–$100. Applicants who need multiple certified documents can expect to spend $100–$300 on retrieval fees.

Name change processing. Either concurrent with naturalisation or through a separate court petition. Adds $150–$400 in court filing fees depending on the jurisdiction. Applicants who request a name change on Form N-400 receive the new name on their naturalisation certificate at no additional cost, but must still pay state-level fees to update driver's licences, Social Security records, and legal documents.

Key Takeaways

• The baseline N-400 cost is $710 ($640 filing + $70 biometrics), but legal preparation, translations, travel, and document retrieval typically raise total expenses to $1,200–$3,500 depending on case complexity.
• Reduced fee applicants with household income between 150% and 200% of poverty guidelines pay $390 total, while those below 150% can request a full waiver using Form I-912 with supporting financial documentation.
• Legal consultation costs $500–$2,500 depending on complexity. Upfront preparation prevents costly RFE responses that average $1,500–$3,000 to resolve after submission.
• Certified translations of foreign-language documents add $150–$400 for most applicants, while travel to USCIS offices for biometrics and interviews can add $200–$500 depending on distance.
• Applicants who file without legal review face higher denial rates and longer processing times. The cost of fixing errors post-submission consistently exceeds the cost of preventing them through proper preparation.

What If: N-400 Cost Scenarios

What If I Can't Afford the $710 Filing Fee?

Request a fee waiver by filing Form I-912 with your N-400 application. You qualify if your household income is below 150% of the Federal Poverty Guidelines, if you currently receive public benefits (SNAP, Medicaid, SSI, TANF), or if you can document financial hardship such as medical debt, unemployment, or bankruptcy. Include tax transcripts for the most recent tax year, proof of benefits enrollment, or detailed hardship documentation. USCIS reviews waiver requests individually. Approval is not guaranteed, and incomplete documentation results in rejection of the entire application.

What If My Application Is Denied After I Paid the Fee?

The $710 N-400 cost is non-refundable regardless of the outcome. If your application is denied, you must file a new N-400 and pay the full fee again. You cannot appeal a naturalisation denial. The only remedy is to address the grounds for denial and reapply. This is why upfront legal review matters: applicants who file prematurely without resolving eligibility issues pay the filing fee twice. If you're denied due to an issue that could have been identified in advance (unpaid taxes, undisclosed arrests, selective service non-compliance), the second filing costs an additional $710 plus legal fees to correct the underlying problem.

What If I Need to Reschedule My Biometrics or Interview Appointment?

USCIS allows one rescheduling request per appointment type at no additional cost, but approval is not automatic. Valid reasons include medical emergencies, pre-scheduled international travel, or military deployment. Document the reason and submit the request in writing as soon as possible. Failure to appear without prior approval results in administrative closure of your case, requiring a new filing and a new $710 payment. Rescheduling for convenience or work conflicts is rarely approved. If you must reschedule, do it immediately and provide documentation. Don't assume USCIS will approve it.

The Uncomfortable Truth About N-400 Cost

Here's the honest answer: the published $710 N-400 cost is technically accurate, but it's not the number that matters. The number that matters is what you'll actually spend from the day you decide to apply to the day you take the oath of citizenship. And that figure is almost never $710. We've seen this pattern repeat across hundreds of cases at our firm since 1981. Applicants who budget only for the filing fee are the ones who call six months later asking how much it will cost to respond to an RFE they didn't anticipate, or how to fix a mistake they made on the application, or whether they should have disclosed something they thought was irrelevant.

The uncomfortable truth is that the N-400 process punishes unforced errors more severely than any other immigration benefit. A green card application denied for missing documentation can often be refiled with the same fee. An N-400 denial is permanent in your immigration record and requires a completely new application with a new $710 payment. The stakes are higher, the margin for error is smaller, and the cost of mistakes compounds quickly.

If you're deciding whether to retain legal counsel or file on your own to save money, understand this: the decision isn't really about the N-400 cost. It's about whether you're confident you've identified every issue in your immigration history, employment record, tax compliance, and criminal background that USCIS could use as grounds for denial. If you're certain. Genuinely certain. That your case is straightforward and you've reviewed every requirement, filing on your own is reasonable. If there's any ambiguity, any gap in your work history you're not sure how to explain, any dismissed charge you're not sure whether to disclose. The cost of legal review is an investment that prevents denial, not an optional expense.

You'll spend money on this process one way or another. The question is whether you spend it upfront on preparation or later on fixing mistakes that could have been avoided.

For applicants ready to move forward with confidence, our citizenship services provide comprehensive legal review and preparation tailored to your specific immigration history. The initial consultation at the Law Offices of Peter D. Chu identifies potential issues before you file, so you know exactly what the process will cost and what to expect at every stage. We've been navigating the complexities of immigration law since 1981. Your case benefits from that depth of experience, and the investment protects your eligibility for naturalisation.