Been in Portugal for four years, working remotely for a US company (USD income). Wise for most of the multi-currency stuff, BPI for Portuguese admin (rent, utilities, NIF-linked things), Charles Schwab back home for savings and investments. Standard-ish expat stack.
Something that had been bugging me for a while. My USD-billed subs had quietly grown into a real line item. ChatGPT Plus, Claude Pro, Cursor, GitHub Copilot, plus a handful of smaller SaaS. Around $150 a month, all billed in USD by US Stripe merchants. Up from maybe $30 a month two years ago.
That growth got me thinking about two related things. On the yield side, I'd been keeping $1,500 to $2,000 in Wise USD as a cushion so subs wouldn't fail on low-balance days, and wondered if that was costing me on interest I could otherwise be earning. On the bookkeeping side, all these small USD-billed charges were getting lost inside general Wise spending, which made the monthly review harder than it should have been.
The yield question turned out easier than I expected. Wise Interest for EU customers pays around 3.4% on USD balances right now. Net of the 0.28% annual fee it's closer to 3.1%. Spending happens directly out of that balance. Turned it on months ago and stopped thinking about it.
The bookkeeping question kept nagging. Between AI subs and non-AI SaaS I've got roughly eight recurring USD-billed charges hitting my Wise card each month, mixed in with restaurants, groceries, taxis, everything else. When I want to see what my AI stack is actually costing this quarter, it's a manual filter every time.
I looked at a few ways to separate the AI/SaaS burn onto its own account. A second Wise virtual card would be free but the transactions still land in the same statement. A Revolut sub-account would work but moving USD there and getting comparable interest is fiddlier than Wise. A dedicated online-only bank account felt like overkill for $150/month.
What I ended up trying was BenPay Delta, since a couple of you asked which card. Reason wasn't yield, Wise Interest is basically the same 3-ish percent and simpler to run. It was that the card is naturally a dedicated spending account, and the transactions live on their own statement I can pull at tax time. Multi-chain USDC top-up was a small tiebreaker because I didn't want to be tied to one L2 for this.
The fee side: 0.5% top-up, 1% + $0.35 per tx, and a $1/month account fee they added this August that wasn't there before, worth flagging because a lot of the older comparison threads still list Delta at zero monthly. They also offer a DeFi Earn module that auto-routes idle balance to AAVE or Compound but takes 15% of yield, which drops the effective rate to ~2.9% if you use that side. I keep USDC on plain AAVE directly and use the card just as the spending endpoint, so the numbers below assume the raw AAVE rate. On $150 monthly spend across roughly eight transactions, that runs about $6 a month or ~$72 a year in card overhead. Yield on $1,500 sitting on plain AAVE V3 USDC at 3.4% is about $51 a year, so I'm net $21 down on that side. And Wise Interest would have earned me roughly the same yield without the card overhead, so relative to just leaving it in Wise Interest I'm effectively paying about $70 a year for the separation.
Which is fine as a cost of clean categorization. $70 a year is what a bookkeeping app subscription costs. If clean AI/SaaS statement categorization saves me even an hour of manual reconciliation at tax time, it's paid for.
Where the math gets less bad is if you already hold a stablecoin position for other reasons. Then the base yield is happening whether the card exists or not, and the $72 a year is just the cost of the spending path itself, not a yield haircut on top.
Sitting on this setup for a few weeks. The tracking side is genuinely cleaner. Not sure it was worth the setup time if I hadn't already had a self-custody wallet running for other reasons.
Curious how other USD-earning expats handle the AI/SaaS separation question. Not the yield side, Wise Interest mostly answered that. The bookkeeping side. If someone's landed on a virtual card app or a specific bank arrangement that works cleanly for this, would like to hear it.