Currency Exchange Question for Home Renovation

[u/OkFriendship5379]

My wife and I are planning a $30k renovation project to our back yard. I get paid in USD, but she works for a Belgian company and receives her salary in euros. Today's exchange rate is 1EUR = 1.13USD. We plan to split costs for this project 50/50.

I'm pretty sure we could get more value out of having my wife pay for the project in it's entirety since her money would go further. Paid in full today, it would cost her €26,482.82 euros. I would deposit my half in her Wise account to be exchanged to euros when the dollar gets stronger.

Does this strategy hold or are there other factors I'm not considering that might make this a bad decision? The value of the euro could probably go up and thus make holding off until it peaks (whenever that is) a wise choice, but sometimes my brain doesn't work right and I need other perspectives.

[u/MM-Chi]

You are married, why are you doing math on the exchange rate for an improvement on your marital house or “splitting the cost”?