- A transfer bonus gives you extra partner miles on the same points: a 30% bonus turns 1,000 MR into 1,300 miles.
- As of August 2026: 30% to British Airways, Iberia, and Aer Lingus Avios, all expiring Sept 27, 2026.
- Bonuses rotate about monthly and run 25 to 40 percent. Check your Amex transfer page for the live list.
- Only transfer with a booking in mind: transfers are one-way and cannot be reversed.
- A bonus is a boost, not a reason to transfer. Value comes from the redemption, not the bonus alone.
An Amex transfer bonus is the closest thing to free extra value in the Membership Rewards program: for a limited time, moving points to a specific airline or hotel partner earns you a percentage of bonus miles on top. A 30 percent bonus turns 1,000 Membership Rewards into 1,300 partner miles. Below are the bonuses live right now, how the mechanic works, and exactly how to time a transfer so a bonus actually saves you points rather than tempting you into a bad move.
Current Amex transfer bonuses (August 2026)
These are the Amex Membership Rewards transfer bonuses we can confirm as live as of August 17, 2026. Bonuses change often, so treat this as a snapshot and verify on your own Amex account before transferring.
| Transfer partner | Bonus | Expires |
|---|---|---|
| British Airways Executive Club (Avios) | 30% | Sept 27, 2026 |
| Iberia Plus (Avios) | 30% | Sept 27, 2026 |
| Aer Lingus AerClub (Avios) | 30% | Sept 27, 2026 |
The three Avios programs share a currency, so this bonus is effectively one offer across British Airways, Iberia, and Aer Lingus. Avios are useful for short-haul flights and, through Iberia, some standout deals to Europe. If you do not have a redemption in one of these programs, a bonus to a partner you cannot use is worth nothing, so do not transfer just because the number looks good.
How Amex transfer bonuses work
Membership Rewards points normally transfer to most airline partners at a 1:1 ratio: 1,000 points become 1,000 miles. A transfer bonus temporarily improves that ratio. Here is what different bonus levels do to a 50,000-point transfer.
| Bonus | 50,000 MR becomes | Extra miles |
|---|---|---|
| No bonus (1:1) | 50,000 | 0 |
| 25% | 62,500 | 12,500 |
| 30% | 65,000 | 15,000 |
| 40% | 70,000 | 20,000 |
Two rules make the mechanic work in your favor. First, the bonus applies to transfers you complete while the offer is live, not to miles already sitting with the partner. Second, transfers are one-way and irreversible: once your Membership Rewards become Avios, you cannot turn them back into Amex points. That is why the golden rule is to transfer only what you need for a specific booking.
How to check live bonuses (the authoritative source)
Go straight to your Amex account
Log in at americanexpress.com, open the Membership Rewards or Rewards section, and select Transfer Points. Any active bonus appears next to the eligible partner. This is the authoritative source: third-party trackers are useful for a heads-up, but they can lag Amex’s own listings by a day or two.
Confirm the exact terms
Check the bonus percentage, the expiration date, and any minimum transfer amount before you move anything. Note that the miles, including the bonus, can take anywhere from instant to a few days to post depending on the partner.
Check award availability first
Before transferring, confirm on the airline’s own site that the award seat you want is actually bookable for the mileage price you expect. Only then transfer the exact number of points you need. Never transfer speculatively and hope a seat opens up.
How to time a transfer for the most value
The mistake most people make is treating a bonus as a deadline to act. It is the opposite. A bonus is only valuable if you already have a use for the miles. The right sequence is: find an award booking you want, confirm the seat is available, check whether a bonus is live to that partner, and only then transfer the exact amount you need. If a bonus is running to a program you already planned to use, that is a genuine win worth 25 to 40 percent. If it is not, wait. Amex runs bonuses to popular partners regularly, and a better-matched one usually comes around.
Building the Membership Rewards balance in the first place is where a card like the Amex Gold earns its keep, with 4X on dining and US supermarkets. Not sure the card pays for itself for your spending? Run the numbers in our free credit card worth it calculator, and see our full take on whether the Amex Gold is worth it or the Amex Platinum is worth it.
Mistakes to avoid
- Transferring without a booking. Miles are worth far less than flexible Membership Rewards. Only convert what you will actually use.
- Chasing the bonus, not the redemption. A 40 percent bonus to a program you cannot use is worth zero.
- Transferring too early. Confirm award availability first, since seats can vanish and the transfer cannot be undone.
- Ignoring the expiration date. The bonus must post before the offer ends, and transfer times vary, so do not wait until the last hour.
- Over-transferring. Move the exact amount needed. Leftover partner miles can expire and lose the flexibility Amex points gave you.
Frequently Asked Questions
What is an Amex transfer bonus?
What are the current Amex transfer bonuses?
Where do I check for live Amex transfer bonuses?
Should I transfer Amex points without a bonus?
How long do Amex transfer bonuses last?
Which Amex cards earn Membership Rewards for transfers?
Amex transfer bonuses are a real way to stretch Membership Rewards 25 to 40 percent further, but only when a live bonus lines up with a redemption you already want. As of August 2026 that means 30 percent to British Airways, Iberia, and Aer Lingus Avios through September 27. Because these offers rotate constantly, treat this page as a starting point and confirm the live list on your Amex transfer page. Then follow the discipline that makes points valuable: find the award, confirm the seat, transfer only what you need, and never chase a bonus for its own sake.
Sources
- American Express, Membership Rewards transfer partners page: americanexpress.com
- Frequent Miler, current point transfer bonuses (August 2026): frequentmiler.com
- Live bonuses verified against third-party trackers as of August 17, 2026. Bonuses change frequently: always confirm on your own Amex transfer page before moving points.
Last updated August 2026. We refresh this tracker as Amex transfer bonuses change. See our affiliate disclosure, terms, and privacy policy.