If spousal support is at issue in a hearing, then your spouse is legally required to produce her last two years tax returns, along with a filled-in Form FL-150, and her last two paystubs, if any.
If she does not produce these forms for the hearing, then you can ask the court to "trail" the matter to another date, and order your spouse to produce the tax returns.
If your spouse claims that there are no returns, then you can ask the court to "trail" the hearing for 45 days, while you attempt to obtain the returns directly from the IRS, and you can ask that the court order your spouse to execute an IRS form 4506 (which you will have conveniently filled out in advance, and brought to the hearing).
Hope this helps.
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