A K-1 fiancé(e) visa costs about $2,380 to $2,630 in required government fees, plus a few hundred dollars more in medical, travel, and document costs. The range depends mainly on whether your spouse's Form I-485 is filed by mail or online, and whether your consulate has started charging the new Visa Integrity Fee (more on that below).

The three fees USCIS and the State Department will definitely collect — I-129F, DS-160, and I-485 — add up to $2,380 by mail or $2,330 if the I-485 is filed online. Form I-129F itself doesn't currently offer an online-filing discount, despite what some other guides say; USCIS's own fee calculator lists a single $675 rate for it.

Add the $250 Visa Integrity Fee on top if your consulate is already collecting it, and the total reaches $2,630 (mail) or $2,580 (I-485 online). Compare either range to the $800 to $2,025 figures still floating around on older guides (including our own, until now) — the math has genuinely changed twice since 2023.

A new $250 "Visa Integrity Fee" applies to nearly every nonimmigrant visa the State Department issues, K-1 included — but not every consulate is charging it yet. Congress created the fee in the reconciliation law signed July 4, 2025, often referred to as the One Big Beautiful Bill Act, which added it directly to the immigration statute, effective for visas issued on or after October 1, 2025.

In practice, the rollout has been uneven. As of this writing, some US embassies and consulates are collecting the fee at visa issuance and others haven't started, because the State Department hadn't issued uniform implementation guidance to every post. Budget for the $250 as if you'll pay it, but don't be surprised either way — ask your consulate directly if you want to know before your interview.

The fee is billed as a minimum — $250 or a higher amount DHS sets by rule, adjusted for inflation each year starting in 2026 — and by statute it "shall not be waived or reduced."

There's a genuine upside for K-1 cases specifically: the same statute lets the government reimburse the fee after the visa's validity period ends, if your fiancé(e) didn't work without authorization and either left the US within 5 days of the visa expiring, or — the path most K-1 couples actually take — was granted an extension of status or an adjustment to lawful permanent resident status while the visa was still valid. In plain terms, successfully completing the marriage-and-green-card process is itself one of the two ways to qualify for reimbursement.

Neither USCIS nor the State Department had published a claims process as of this writing, so treat that as a future benefit rather than money you'll see back quickly. A Federal Register notice issued shortly after the law passed lays out how USCIS is implementing the broader fee package this created.

A widespread misconception is that your fiancé(e) can work immediately after entering on a K-1 visa. They can't. Work authorization only comes after they file Form I-765 for an Employment Authorization Document, which typically happens alongside the adjustment of status application after marriage.

After you marry within the K-1 visa's 90-day window, your spouse files Form I-485 to become a lawful permanent resident, and that step costs $1,440 by mail or $1,390 online. This fee already includes biometric processing — the current fee regulation no longer lists a separate $85 biometric services fee for this form, unlike the pre-2024 schedule.

If you're bringing a K-2 dependent child, the child needs their own $265 DS-160 application and, later, their own Form I-485 — $950 by mail / $900 online if they're under 14 and filing with a parent, or the standard $1,440/$1,390 if they're 14 or older.

There's no fee waiver available for a standard K-1-to-marriage adjustment of status. Form I-912 fee waivers for the I-485 are limited to a short list of categories exempt from the "public charge" ground of inadmissibility — the Cuban Adjustment Act, the Haitian Refugee Immigration Fairness Act, continuous US residence since before 1972 ("Registry"), or asylum status. A K-1 beneficiary adjusting status through marriage doesn't fall into any of those categories, so the I-485, I-129F, and DS-160 fees are all due regardless of income.

Once USCIS approves the I-485 application, your spouse becomes a lawful permanent resident and receives a Permanent Resident Card in the mail — the final document in the K-1-to-green-card path.

Based on internal data from more than 1,300 K-1 petitions prepared by attorneys who work with Marble, initial I-129F case preparation typically takes 8 to 15 weeks depending on service tier, and the adjustment-of-status step afterward runs a median of roughly 3 months. Knowing that rhythm in advance makes it easier to plan when each fee actually comes due, rather than budgeting for all of it at once.

Not usually, once you count every step. A K-1 visa and a marriage-based green card (CR-1/IR-1) start from the same Form I-129F-equivalent filing fee, but the K-1 route adds the DS-160 fee, the new Visa Integrity Fee, and then a full I-485 adjustment of status application after marriage — three separate payments beyond the initial petition.

A marriage-based green card filed while already married skips the K-1 step and its associated fees entirely, going straight to the immigrant visa or adjustment of status process instead. Couples who are already certain they want to marry, and can do so before filing, often find the CR-1/IR-1 path is the more cost-efficient one. Couples who aren't yet ready to marry, or whose fiancé(e) needs to enter the US first, still find the K-1 route worth the extra cost for the flexibility it provides.

An immigration attorney can review your I-129F petition and supporting evidence before you file, flag documentation gaps that commonly trigger delays, and help you sequence which fees to pay when so you're not caught off guard mid-process. This kind of review is included when you work with Marble Law on a fiancé visa, for a fixed price you know upfront.

K-1 visa cost has moved twice in the last two years, and the newest change — the Visa Integrity Fee — isn't optional and isn't small. Knowing the real 2026 numbers before you start, rather than partway through, is the difference between budgeting calmly and scrambling for an unexpected $250 or $300 fee at the worst possible moment.

Disclaimer: Laws and procedures vary by state and jurisdiction. This article provides general information and should not be considered legal advice for your specific situation. For personalized guidance, consult with an attorney.